20 not of commandment.” And therefore, if it is allowable that an unbelieving wife should be put away, although it is better not to put her away, and yet not allowable, according to the commandment of the Lord, that a wife should be put away, saving for the cause of fornication, [then] unbelief itself also is fornication. 45. For what sayest thou, O apostle? Surely, that a believing husband who has an unbe- lieving wife pleased to dwell with him is not to put her away? Just so, says he. When, therefore, the Lord also gives this command, that a man should not put away his wife, saving for the cause of fornication, why dost thou say here, “I speak, not the Lord”? For this reason, viz. that the idolatry which unbelievers follow, and every other noxious superstition, is fornica- tion. Now, the Lord permitted a wife to be put away for the cause of fornication; but in permitting, He did not command it: He gave opportunity to the apostle for advising that whoever wished should not put away an unbelieving wife, in order that, perchance, in this way she might become a believer. “For,” says he, “the unbelieving husband is sanctified in the wife, and the unbelieving wife is sanctified in the brother.”146 I suppose it had already occurred that some wives were embracing the faith by means of their believing husbands, and husbands by means of their believing wives; and although not mentioning names, he yet urged his case by examples, in order to strengthen his counsel. Then he goes on to say, “Else were your children unclean; but now are they holy.” For now the children were Christians, who were sanctified at the instance of one of the parents, or with the consent of both; which would not take place unless the marriage were broken up by one of the parties becoming a believer, and unless the unbelief of the spouse were borne with so far as to give an opportunity of believing. This, therefore, is the counsel of Him whom I regard as having spoken the words, “Whatsoever thou spendest more, when I come again, I will repay thee.”147 46. Moreover, if unbelief is fornication, and idolatry unbelief, and covetousness idolatry, it is not to be doubted that covetousness also is fornication. Who, then, in that case can rightly separate any unlawful lust whatever from the category of fornication, if covetousness is fornication? And from this we perceive, that because of unlawful lusts, not only those of which one is guilty in acts of uncleanness with another’s husband or wife, but any unlawful lusts whatever, which cause the soul making a bad use of the body to wander from the law of God, and to be ruinously and basely corrupted, a man may, without crime, put away his wife, and a wife her husband, because the Lord makes the cause of fornication an exception; which fornication, in accordance with the above considerations, we are compelled to under- stand as being general and universal. 146 1 Cor. vii. 14. Augustin conforms to the approved reading in the Greek text: in uxore…in fratre. Vulgate, per mulierem,…per virum. (See Revised Version.) 147 Luke x. 35. 55 Chapter XVI